Designation

Intelligence interval

Average

85 - 115

Above average

115 - 125

Gifted

125 - 135

Highly gifted

135 - 145

Genius

145 - 155

Genius

156 - 165

High genius

166 - 180

Highest genius

181 - 200

The following is a chart of I.Q. scores from 100 to 202.
The rarity column shows how many people in the general population are expected to achieve
this percentile or higher. For example, 1 out of 100 people are expected to achieve an
I.Q. score of 137 or higher.